Spring handle-bar for cycles.



PATENTED FEB. 21, 1905 R. WESTERMANN.

SPRING HANDLE BAR FOR. CYCLES.

APPLICATION FILED JULY 27, 1903.

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UNITED STATES Patented February 21, 1905.

PATENT OEEIcE.

RICHARD WESTERMANN, OF MAGDEBURG, GERMANY.

SPRING HANDLE-BAR FOR CYCLES.

SPECIFICATION forming part of Letters Patent No. 783,162, dated February21, 1905.

Application filed July 27, 1903. Serial No. 167,192.

To (all whom, it may concern:

Be itknown that I, RICHARD WESTERMANN, locksmith, a subject of the Kingof Prussia, German Emperor, residing at 6 Stendalerstrasse, Magdeburg,Germany, have invented a new and useful Spring Handle-Bar. for Cycles,of which the following is a specification.

The object of the present invention consists of a handle-bar for cyclesand like vehicles the object whereof is to prevent the shocks of themachine reaching the hands and arms of the rider. The shocks are not toosensible if the road is in a fairly good condition; but they becometiring by their rapid succession. 1t very rarely happens that one has toride alonga road in such a bad condition that the motion becomesgalloping. It is for this reason that the spring must easily move aboutits position of rest. Contraril y, the resistance of the spring shouldincrease very rapidly when the amplitude of the trepidation increases.The handle-bar also should be disposed so that it can furnish a rigidfulcrum when the rider increases his speed and for that purposeincreases the pressure of the feet upon the pedals by a traction exertedby the arms and hands upon the handle. These advantages are obtained bythe disposition hereinafter set forth, and represented by way of examplein the annexed'draw ings, in which Figure 1 is a longitudinal verticalsection of this invention. Fig 2 shows a horizontal section of same.Fig. 3 shows a horizontal section thereof, the spring being arranged ina slightly-different manner.

The novelty consists, essentially, in the disposition of the springssubmitted to the efforts of torsion and in the special manner ofconnecting together the parts influenced by the springs.

a indicates the tube of the handle-bar, which is cut at the center,projects outwardly, and is terminated with two handles. The two partsare connected togetherrby a short tube Z) and can turn in the horizontalportion of the head of the handle-bar 0. The tube d enters in the usualmanner into the front-fork by its center.

and 2. These springs may also have a round,

square, or other similar section. In the latter case they are arrangedin groups, Fig. 3.

A metal part it is slid over the springs g and in such a way that at thecenter it is between the two metal bungs. This part firmly holds thesprings and has a small amount of play inside the tube 7).

The metal part 71 is provided with a hole passing from one'side of it tothe other and is provided with a bolt 2', which passes through the twosides of the tube 6, as well as through the tube of the handle-bar a, bymeans of holes slightly larger than its own diameter. The projectingends of the bolt 6 are fixed inside the head 0 of the handle-bar. Owingto this disposition, the spring is maintained immovable If from thencethe handle-bar is moved upwardly or downwardly by its free and curvedends, the rotation of the straight portion situated inside the head 0 ofthe handlebar is transmitted, by means of the intermediate tube 6 andmetal plugs c, to the spring g, which consequently must follow thisrotary motion and are twisted. As the springs are fixed at h and at e,the different parts of the spring are submitted to both the tractionaland bending efforts, thereby causing the resistance of the spring whichat first was weak to increase very rapidly. The limitfor the rotation ofthe handle-bar is reached when the edges of the holes in a and I) bearagainst the bolt What I claim as my invention, and desire to secure byLetters Patent, is-

In a spring handle-bar having a fixed middle part and two outer partssocketed into the middle part, a short tube joining the halves of thehandle, a drum in midst of same, a In Witness whereof Ihave hereunto setmy spring device, comprising a number of flat hand in presence of twoWitnesses. springs penetrating the drum, a screw-bolt piercing drum andsprings at once, plugs fixed RICHARD WEbTERMANN at the ends of said tubepenetrated by the Witnesses: spring device and firmly joined to it, allas ERIGH PETERS,

described and for the purpose set forth. JAMES L. A. BURRELL.

